Reproducibility of highly active Au/TiO2 catalyst preparation and conditioning |
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| Authors: | B. Schumacher V. Plzak J. Cai R.J. Behm |
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| Affiliation: | (1) Department Surface Chemistry and Catalysis, University of Ulm, D-89069 Ulm, Germany;(2) Centre for Solar Energy and Hydrogen Research, Helmholtzstr. 8, D-89081 Ulm, Germany |
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| Abstract: | We present results of a comparative study on the reproducibility of Au/TiO2 catalyst preparation and conditioning. Comparison of their physical characteristics and their catalytic activity for CO oxidation shows that highly active catalysts can indeed be prepared in a very well-defined and reproducible way, with particle sizes of  2 nm (conditioning via reductive or redox treatment) or 3 nm (conditioning via calcination). |
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| Keywords: | Au/TiO2 catalyst reproducibility CO oxidation selective particle size TEM oxidation state XPS |
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